diff --git a/board/digsy_mtc/cmd_mtc.h b/board/digsy_mtc/cmd_mtc.h
index db3aeed..81714e3 100644
--- a/board/digsy_mtc/cmd_mtc.h
+++ b/board/digsy_mtc/cmd_mtc.h
@@ -27,6 +27,7 @@
 #define CMD_MTC_H
 
 #define	CMD_WD_PARA		0x02
+#define	CMD_WD_WDSTATE		0x04
 #define	CMD_FW_VERSION		0x10
 #define	CMD_GET_VIM		0x30
 #define	CMD_SET_LED		0x40